This is really cute and I love how you made a game about a conlang but I cant figure out how to use the notes :P
Can I have a little hint?
I'm glad you like it !
The hints are an attempt to lay down the rules of the language...
Basically, each note contain emoticons followed by the corresponding words.
The very first rule is a bit tricky to decrypt, so I give it to you:
Rib -> In / Kri -> Out (it can also means On/Off or anything like that.)
This: 'o..x' means that the speaker (o) is quite near of the object (x).
Finally, this is meant to represent a frog's head...
Now I think you will understand it much better.